Finding the Fourth Proportional to 109,202.19, 150,674.09 and 61,438.11
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Solution
The fourth proportional to 109,202.19, 150,674.09 and 61,438.11 is: 84,770.56
Step by Step Solution
- Step 1: Write the proportion equation
109,202.19 : 150,674.09 = 61,438.11 : x - Step 2: Convert to fraction form
109,202.19/150,674.09 = 61,438.11/x - Step 3: Cross multiply
109,202.19x = 150,674.09 × 61,438.11 - Step 4: Simplify right side
109,202.19x = 9,257,130,841.06 - Step 5: Solve for x
x = 9,257,130,841.06/109,202.19 - Step 6: Final answer
x = 84,770.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.